implement more models and rhai examples

heromodels/examples/calendar_example/main.rs

@@ -50,12 +50,12 @@ fn main() {
 
     // --- Create Calendars ---
     // Note: Calendar::new directly returns Calendar, no separate .build() step like the user example.
-    let calendar1 = Calendar::new(1, "Work Calendar")
+    let calendar1 = Calendar::new(1)
         .description("Calendar for all work-related events.")
         .add_event(event1.clone())
         .add_event(event2.clone());
 
-    let calendar2 = Calendar::new(2, "Personal Calendar")
+    let calendar2 = Calendar::new(2)
         .add_event(event3_for_calendar2.clone());